turbo-assembler-s390-unittest.cc 2.07 KB
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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

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#include "src/codegen/macro-assembler.h"
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#include "src/codegen/s390/assembler-s390-inl.h"
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#include "src/execution/simulator.h"
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#include "test/common/assembler-tester.h"
#include "test/unittests/test-utils.h"
#include "testing/gtest-support.h"

namespace v8 {
namespace internal {

#define __ tasm.

// Test the s390 assembler by compiling some simple functions into
// a buffer and executing them.  These tests do not initialize the
// V8 library, create a context, or use any V8 objects.

class TurboAssemblerTest : public TestWithIsolate {};

TEST_F(TurboAssemblerTest, TestHardAbort) {
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  auto buffer = AllocateAssemblerBuffer();
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  TurboAssembler tasm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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                      buffer->CreateView());
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  __ set_root_array_available(false);
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  __ set_abort_hard(true);

  __ Abort(AbortReason::kNoReason);

  CodeDesc desc;
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  tasm.GetCode(isolate(), &desc);
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  buffer->MakeExecutable();
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  // We need an isolate here to execute in the simulator.
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  auto f = GeneratedCode<void>::FromBuffer(isolate(), buffer->start());
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  ASSERT_DEATH_IF_SUPPORTED({ f.Call(); }, "abort: no reason");
}

TEST_F(TurboAssemblerTest, TestCheck) {
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  auto buffer = AllocateAssemblerBuffer();
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  TurboAssembler tasm(isolate(), AssemblerOptions{}, CodeObjectRequired::kNo,
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                      buffer->CreateView());
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  __ set_root_array_available(false);
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  __ set_abort_hard(true);

  // Fail if the first parameter is 17.
  __ lgfi(r3, Operand(17));
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  __ CmpS64(r2, r3);  // 1st parameter is in {r2}.
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  __ Check(Condition::ne, AbortReason::kNoReason);
  __ Ret();

  CodeDesc desc;
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  tasm.GetCode(isolate(), &desc);
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  buffer->MakeExecutable();
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  // We need an isolate here to execute in the simulator.
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  auto f = GeneratedCode<void, int>::FromBuffer(isolate(), buffer->start());
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  f.Call(0);
  f.Call(18);
  ASSERT_DEATH_IF_SUPPORTED({ f.Call(17); }, "abort: no reason");
}

#undef __

}  // namespace internal
}  // namespace v8